From mboxrd@z Thu Jan  1 00:00:00 1970
From: Rajesh Shah <rajesh.shah@intel.com>
Subject: Re: [ACPI] native vs acpi support
Date: Mon, 12 Sep 2005 11:00:25 -0700
Message-ID: <20050912110025.A15668@unix-os.sc.intel.com>
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In-Reply-To: <20050912071649.22726.qmail@web35406.mail.mud.yahoo.com>; from kvidyut2000@yahoo.co.in on Mon, Sep 12, 2005 at 08:16:49AM +0100
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To: vidyut karan <kvidyut2000@yahoo.co.in>
Cc: linux-hotplug-devel@lists.sourceforge.net, acpi-devel@lists.sourceforge.net, greg@kroah.com
List-Id: linux-acpi@vger.kernel.org

On Mon, Sep 12, 2005 at 08:16:49AM +0100, vidyut karan wrote:
> 
>    What is the difference betwwen an
> 
>    OS with an "native hot plug support"
> 
An OS that has hotplug support as described in the PCI Express
specification. This is supported by the pciehp driver.

>    and controlling the hot-plug by using ACPI.
> 
An OS that has hotplug support as described in the ACPI
specification. This is supported by the acpiphp driver.

Native pcie hotplug is newer and better, since it describes a
usage model (e.g. attention buttons, indicators etc.) and
standardizes the programming interface to the hotplug
hardware. 

> 
>    If  my  query sounds idiotic, give me some pointers so that i can move
>    on the right track.
> 
See the PCI hotplug specification and PCI Express specification
from the PCI SIG, and the ACPI specification from 
http://www.acpi.info/.

Rajesh


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